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[time] Add the sleep command

Reviewed-by: Stefan Hajnoczi <stefanha@gmail.com>
Reviewed-by: Thomas Miletich <thomas.miletich@gmail.com>
Modified-by: Michael Brown <mcb30@etherboot.org>
Signed-off-by: Michael Brown <mcb30@etherboot.org>
tags/v0.9.8
Shao Miller 15 vuotta sitten
vanhempi
commit
87b494bbab
2 muutettua tiedostoa jossa 31 lisäystä ja 1 poistoa
  1. 1
    1
      src/config/general.h
  2. 30
    0
      src/hci/commands/time_cmd.c

+ 1
- 1
src/config/general.h Näytä tiedosto

@@ -101,7 +101,7 @@
101 101
 #define DHCP_CMD		/* DHCP management commands */
102 102
 #define SANBOOT_CMD		/* SAN boot commands */
103 103
 #define LOGIN_CMD		/* Login command */
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-#undef	TIME_CMD		/* Time command */
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+#undef	TIME_CMD		/* Time commands */
105 105
 
106 106
 /*
107 107
  * Obscure configuration options

+ 30
- 0
src/hci/commands/time_cmd.c Näytä tiedosto

@@ -14,12 +14,17 @@
14 14
  * You should have received a copy of the GNU General Public License
15 15
  * along with this program; if not, write to the Free Software
16 16
  * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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+ *
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+ * March-19-2009 @ 02:44: Added sleep command.
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+ * Shao Miller <shao.miller@yrdsb.edu.on.ca>.
17 20
  */
18 21
 
19 22
 #include <stdio.h>
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+#include <stdlib.h>
20 24
 #include <string.h>
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 #include <unistd.h>
22 26
 #include <gpxe/command.h>
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+#include <gpxe/nap.h>
23 28
 #include <gpxe/timer.h>
24 29
 
25 30
 static int time_exec ( int argc, char **argv ) {
@@ -52,3 +57,28 @@ struct command time_command __command = {
52 57
 	.exec = time_exec,
53 58
 };
54 59
 
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+static int sleep_exec ( int argc, char **argv ) {
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+	unsigned long start, delay;
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+
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+	if ( argc == 1 ||
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+	     !strcmp ( argv[1], "--help" ) ||
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+	     !strcmp ( argv[1], "-h" ))
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+	{
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+		printf ( "Usage:\n"
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+			 "  %s <seconds>\n"
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+			 "\n"
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+			 "Sleep for <seconds> seconds\n",
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+			 argv[0] );
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+		return 1;
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+	}
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+	start = currticks();
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+	delay = strtoul ( argv[1], NULL, 0 ) * ticks_per_sec();
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+	while ( ( currticks() - start ) <= delay )
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+		cpu_nap();
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+	return 0;
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+}
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+
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+struct command sleep_command __command = {
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+	.name = "sleep",
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+	.exec = sleep_exec,
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+};

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